European Greenfinch – Isabelle Pastel Yellow, Yellow-billed

Description:

When I bred the first Yellow-billed Greenfinch and established that this new mutation was autosomal recessive, I quickly envisaged fixing it onto other classic mutations. This objective has now been achieved.

The finest result I have achieved to date is the combination of the Pastel Isabelle (a sex-linked, recessive factor) with the Yellow-billed Yellow (an autosomal recessive factor). Note that the beak has turned a vivid yellow, and the horn of the legs is also yellow. There is no trace of white in the plumage; the white has been replaced by yellow (wings, tail, belly, etc.).

The photograph attached to this entry speaks for itself. The bird pictured is a female. Imagine a male Pastel Isabelle with a Yellow Beak. The yellow will be particularly intense. If I’m lucky, I might be able to show you such a bird as early as this year (2013).

Gallery